Difference between Heat Engine and Heat pump.
[5 marks]Explain how the refrigerants are important.
[5 marks]Elaborate the selection procedure of refrigerant.
[5 marks]Explain the Properties and uses of commonly used refrigerant.
[5 marks]Define zeroth law of thermodynamics and first law of thermodynamics and Second law of thermodynamics.
[5 marks]Explain Simple air-cooling system.
[5 marks]Comparison of various air-cooling systems used for aircraft.
[5 marks]Explain Boot strap air cooling system.
[5 marks]Write down the Merits and Demerits of Air refrigeration system.
[5 marks]Explain Multiple evaporators at different temperatures with single compressor, multiple expansion valves and back pressure valves.
[5 marks]What are the advantages of compound compression refrigeration systems?
[5 marks]What are the economic factors influencing the duct layout?
[5 marks]Explain Velocity reduction method for determination of duct design.
[5 marks]What is the use of friction chart in duct design?
[5 marks]Explain Vortex tube refrigeration in detail.
[5 marks]Discuss the Cascade refrigeration systems with its application.
[5 marks]05 Discuss regarding the different material used for duct in detail.
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